Holder for saw-blades



W. J. MCQUILLAN. HOLDER FOR SAW BLADES. APPLlcAnoN man MAYzs, :919.

Patented Feb. 15,1921;

illdl'lED STATES PAlENTv QFFCE.

W'LEAM J. k.ldC-QU'JLIULN, SI1? ITTSBURGH, ENNSYLVANIA.

i HOLDER EGR Slll-BLADES.V

specification 0f Letters 'Patent- Patented Feb. 15, 1921.

Application filed May 29, 1919. Serial No. 3U0,524.

of which a hack savv blade, in oase it becomes broken, may be quickly and easily attached to the handle of the hack saw for use therewith, eliminating the necessity of drilling a hole in thebrolren end ofthe saw blade for iitting the damaged end ot the handle ot the saw. l p

Another obiect of this invention is to provide a saw blade holder which issinlple in construction and is adaptable for attachment t to saw blades of different Widths.

Other objects of the invention will appear in the following detailed description taken in connection with the accoinpany/ingl drawings forming a part of `this specification and in which drawing 1` j Figure 1 is a side elevation, partly in s ection ot' a haelt sau showing the improved blade holder connected thereto. A

Fig. 2 is a side elevation of the improved blade holder showing it attached to the end ot` a saw blade. i

Fig. 3 is a longitudinal section through the blade holder attached to a saw blade.

lio. Il is a top plan of the blade holder.

Fig. 5 is a bottom plan ot the blade holder, and

Fig. 6 is a longitudinal section through a modified form ot the blade holder.

Referrinff more particularly to the draw! ing, A. indicates an approved type ot hack saw structure which is adjustable as to length comprising sections 10 and 11, adjustably connected and held in various adjusted positions by the insertion of a pin 12 through any one of the openings 13 formed in the receiving section 11 ot the hach saw, The section 10 carries the usual handle or hand grip lll upon the inner free end of which the blade engaging pin 15 is mounted, While the section 11 carries the adjustable screw 16 upon the inner end of which is mounted the transversely extending saw blade engaging pin 17.

rlhe blade holder. generally indicated by the numeral which is adapted for use With broken blades for connecting the broken blades to the handle vstructure A. comprises the main body preferably, formed of a single piece ot' sheet metal bent intermediate its ends to provide parallel side portions 21 and 22, adapted to engage none upon each side ot a san/blade B adjacent the broken end of the blade as clearlyshown inFigs; 3 and 5 ot the drawings. The outer end portions of to lie in facial abutment With each other and' may be Welded together 4it desired, as shown 'the parallel sides 21 and 22 are hammered at and these engaging end portions are A provided with `ali'ning openings 24 `adapted to receive either of the pins 15 or 17 therci f i through for connecting the blade holder 2O i to the saw handle structure. of the sides 21 and 22 are bent outwardly to form leads orguards 25 at the inner end of the holder 20.

An upstanding lug 26 is formed on the back ot the holder and presents a straight shoulder 'toward the outer end ofthe holder.

against lwhich shoulder Va pin 27 is adapted to rest'when the holder is attached to a saW blade. j The pin 27 extendstransversely through the sayv'tooth grippingmemberor loop 28 which is preferably rectangular in shape and is provided with an opening through Which thebody ot the holder 2O eX- tends. The lower cross piece 29 of the mem# .ber 28 engages against the angle side ot" one The inner end the body of the blade holder 20 to prevent the rectangular gripping member 23 from accidentallyY moving oil' the body`Y` ot the holder. The sides of. the rectangular inember 28 are provided with a plurality of spaced openings 31 any alining pair of which are adapted to engage the pin 27 to adjust the active length -of the gripping member 28 to iit'the saw blades of different widths.

In Fig. 6 of the drawings, a modied tangular gripping member or loop is designated by the numeral 28a, and 28rL is or' suoli length that wheiirit is in its proper angular positionso that its lower portion 29 will fit against one of the angled sides of one of the teeth ofy the saw blade B, the upperV cross piece oit the body will ni'inly seat against the straight shoulder of the lug 26 formed upon the back or 'the body 20 ol the holder. This body 20a' is constructed in a similar manner` tothe body of the holder 2()Y and is provided with a transversely extend-V ing pin 230? to prevent the rectangular gripping inen'iber QSE* troni moving oiln the'body. The side walls of the body oi the holderare adaptedV to snugly lit the sides of thefsaw blades so as to form a brace l'or the same and thus prevent the buckling thereol:l when in use. and the holder is formed with a less width than the saw lblades with whichthe same is to be used, so as to Vpermit Vor' the lower edges of the saw blades tobe freely'U exposed. However the holder is niadesuficiently, wide so as to embrace the major part of thewidth Voit the saw blade so that a sufficient brace will belprovided for the same.

In use; when a saw blade B breaks, which qnite'trequently happens during use of hack saws, the broken end of the blade is inserted 4between the spaced sides 2l and ot the blade holder 20, and the pin'27 is adi usted to properly fit the width ot .the blade B and the holder 20 is connected to the handlestructure A by inserting eitherthe pin l5v orL 17dependingupoirtheend of the bla-de whiclrhas been'broken', through the opening 24.

Changes indetails may be made without? departing from the spirit of this invention; but,

Il claim: I

l. In a saw blade holder, the combination ot a body comprising a pair of spaced rside platesv adapted to receive the end of a saw.

- blade therebetween, a lug formed upon the back of said body, a rectangular gripping member mounted over said body and adapt- 1 Y ed to bindagainst saidlug` and one tooth ol' a saw blade, a pin extending transversely through the body to prevent accidental movement oifrsaid gripping member off the body, said rectangular gripping member provided with a/plurality ofspaced open- Y ings, apin adapted to be inserted through body,

recense movement olsaid :gripping member off the bodf Ysaid rectangular .ori Dino' member J j I 2: cv .l o provided with a plurality or space-d openings, a pin adapted lto be inserted throughv anyol said openings for regulating the active llength of the .gripping member,V the outer ends of said side plates being bent to lie in facial abutment and provided with an opening adapted for coniiectioirwith a saw handle.

eoY

3. In a saw. blade holden the combination of a body comprising a pair or' spaced side plates adapted to receive the end of the saw blade therebetween, a lug formed upon the back of said body, a rectangular gripping member mounted over said body and adapted to bind .against said lug and one tooth of a saw blade, a pin extending transversely through theV body to prevent accidental Vmovement of said gripping member oil the body, said rectangular gripping ineinber provided with a plurality of spacedopenings, a pin adapted' to be inserted through any'ot'said openings .for regulating the ac tive length of the gripping Vmembert-he outer ends ol said side plates being bent vto lie in facial abutment Vand providedfwith an opening adapted forrconnection with a 'sawV handle, the inner ends of said side plates being bent outwardly.

4. As a new article of manufacture, a saw blade holder comprising a body U-shaped in cross section and closely littingthe sides .of the blade and extending throughout the greater part of the width of the blade to hold it flat, vet sufficiently narrower than the blade to fully expose the teeth at the open side of thc'holder, and having a lug formed on the bight portion thereof, and a rectangular gripping rame'inounted lover said body and arranged to engage said lug and to extend below the open portion otsaid wiLLn-iM J. MGaniman.V 

